Mac OS X v10.6 Snow Leopard: About gamma 2.2

[Sanjin Jukic]

"Summary

Gamma is a numerical value that describes the relationship between the varying levels of brightness

or luminance that a monitor can display or a digital camera or camcorder can capture.


To better serve the needs of consumers and digital content producers,

Mac OS X v10.6 Snow Leopard uses a gamma value of 2.2 by default.

In versions of Mac OS X prior to 10.6,

the default system gamma value was 1.8. Using the capabilities of ColorSync,

the gamma value of 2.2 is automatically applied and seamlessly transitions your display,

images and videos to the new gamma value. If you are a graphic or video professional,

read below for more information.


Gamma 2.2 for videos

Many modern media formats, such as those using the H.264 codec,

contain color information that QuickTime Player uses to correctly play back your video,

regardless of the display's gamma setting.


To check a QuickTime movie's attached color profile,

you can select the video in the Finder and choose Get Info from the File menu.

In the "More Info:" section you will see the color profile information.

Tip: You can use Automator to assign color profiles to your videos, as described below."


Read more:
Mac OS X v10.6 Snow Leopard: About gamma 2.2>>>

 

[Kaku Ito]

Good find, thanks Sanjin.

 

[Kwan Khan]

Thanks .....